Finding the Fourth Proportional to 142,825.12, 214,366.16 and 76,322.09
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Solution
The fourth proportional to 142,825.12, 214,366.16 and 76,322.09 is: 114,551.80
Step by Step Solution
- Step 1: Write the proportion equation
142,825.12 : 214,366.16 = 76,322.09 : x - Step 2: Convert to fraction form
142,825.12/214,366.16 = 76,322.09/x - Step 3: Cross multiply
142,825.12x = 214,366.16 × 76,322.09 - Step 4: Simplify right side
142,825.12x = 16,360,874,083.20 - Step 5: Solve for x
x = 16,360,874,083.20/142,825.12 - Step 6: Final answer
x = 114,551.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.